What is TDM? Time Division Multiplexing Definition

time division multiplexing definition

What is TDM? Time Division Multiplexing Definition

A method of transmitting digital signals that allocates specific time slots for each channel or data stream. This process divides a single transmission channel into multiple, discrete intervals. Each source is given exclusive access to the channel during its assigned interval, allowing several data streams to share the same communication medium. For example, in a communication system using this technique, devices A, B, and C are each allocated a specific duration to transmit their data sequentially. After C transmits, the cycle repeats, allowing each device recurring opportunities to communicate.

The significance of this approach lies in its efficiency and resource utilization. By sharing a single transmission medium, it reduces the need for multiple dedicated channels, thereby lowering infrastructure costs. Historically, it played a crucial role in expanding the capacity of communication networks as demand for data transmission grew. It remains relevant in modern communication systems due to its ability to handle multiple data streams concurrently.

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